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J'. & G. BECKER. TYPE VWRITING MACHINE.

No. 457,336. Patented Aug. 11, 1891;

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J. & G. BEG

TYPE WRITING M c I No. 457,336. at d Aug 11, 1891.

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UNITED STATES PATENT OFFICE.

JOHN BECKER, OF NEWTON, MASSACHUSETTS, AND GEORGE BECKER, OF

NEYV YORK, N. Y., ASSIGNORS, BY MESNE ASSIGNMENTS, TO THE POPE MANUFACTURING COMPANY, OF BOSTON,MASSACHUSETTS.

TYPE-WRITING MACHINE.

SPECIFICATION forming part of Letters Patent No. 457,336, dated August 11, 1891.

Application filed July 16, 1888- Serial No. 280,060. (No model.)

To all whom it may concern:

Be it known that we, JOHN BECKER, of Newton, county of Middlesex, State of Massachusetts, and GEORGE BECKER, of New York, county and state of New York, have invented an Improvement in Type-Vriting Machines, of which the following description, in connection with the accompanying drawings, is a specification, like letters on the drawings representing like parts.

This invention has for its object to constructa type-writing machine which occupies small space, is easily operated, and cheap.

In accordance with this invention, the typeplate is pivoted upon the index-plate, which latter is made movable horizontally, and also adapted to be raised when desired.

The index-plate carrying the type-plate is advanced step by step by novel feeding devices, to be described.

The printing lever or device is depressed by the same means employed to feed the indexplate forward. Suitable spacing devices and inking devices are employed, and also means for feeding the paper forward.

The invention consists in various details of construction to be hereinafter described, and pointed out in the claims.

Figure 1 shows in plan viewatype-writing machine embodying this invention. Fig. 2is a section of machine shown in Fig. 1, taken on dotted lines 00 a1; Fig. 3, a detail of the feeding device for the index-plate; Fig. 4, a detail of a spring for controlling the return movement of the feeding device; Fig. 5, a plan view of the index-plate; Fig. 6, a detail to be referred to. Fig. 7 isa vertical section, on an enlarged scale, taken on the line 01: a), Fig. 1.

The main frame-work of the machine comprises the side plates 2 3, secured to the bed B and joined together by the rods 4 5 6.

The index-plate A (see Figs. 1 and 5) is preferably struck from sheet metal into proper shape to present a curved segment or surface a to receive the characters and the arms a a vided with an upwardly-extended lip or portion a the arm a serving to support a block a, (see Fig. 3,) the said block being attached One of the arms, as a is proto it. The said upwardly-extended lip and block a have each a hole to receive the guiderod 6. (See Fig. 2.) The curved outer edge or portion a of the index-plate rests upon the rod 4. The index-plate is made movable longitudinally, and is also adapted to rock or be turned upwardly upon the guide-rod 6.

A circular type-plate b, substantially such as shown in application for Letters Patent, Serial No. 265,375, filed February 27,1888, and having four type-sections, is'pivoted upon the upper side of the index-plate A at 20, and such type-plate is not herein specially claimed. The type-plate has peripheral teeth, (see Fig. 1,) with which co-operates a tooth 7, which is adapted to correctly position or center the type-plate. The handlever b is mounted loosely upon the pivot or stud 20, upon which the type-plate is mounted. The cam-plate 0, (see dotted lines, Fig. 1,) fixed to the typeplate, has four recesses corresponding with the number of type-sections of the type-plate,

into which enter a disk or button 0, loosely connected to the outer or free end of a spring 0 attached to the hand-lever b, said disk 0 bearing against the cam or recessed plate 0, serving to hold the hand-leverin engagement with one or another part of the type-plate to present the desired part of the type-plate tothe printing-lever, such construction enabling the operator to at will move the said typeplate to present a difierent type-section to the printing-lever. IVhen it is desired to present a different section of the type-plate to the printing-lever, the hand-lever is held stationary and the type-plate moved by the hand one or more quarter-revolutions, the disk 0 at such time yielding.

Two inking pads or disks d d (see Fig. 5) are pivoted upon a plate, frame, or bracket 01 having a shank d which is passed through a loop (1 in theindeX-plate. The inking-pads are placed directly beneath the type-plate, so that as the type-plate is revolved the type may come in contact with the surface of the pads.

The specific construction of said inkingpads is not herein claimed, as they form a part of the subject-matter .of an application, Serial No. 263,952.

The index-plate is fed forward step by step by afeeding device which consists of a double crank (see Fig. 3) passing through the block a the arms e e of said crank being bent in opposite directions, so that when one crankarm is up the other is down. A curved feedplate f, herein shown as a longitudinal section of a tube, is fixed by set-screws 50 to two blocks or disks, as f, placed eccentrically upon the rod 6, one at each end, the screws extending through the disks to the rod 6. One edge of the plate f is toothed, as atf to engage the crank-arm 6, while the opposite edge is smooth and engages the opposite crank-arm e. As the rod 6 is oscillated, the toothed edge of the plate f depresses the crank-arm e in a vertical line, and hence, as the said arm is pivoted at right angles to the axis of the rod 6 and below it, the index-plate to which the said crank-arm is attached is moved forward a short distance at each oscillation. The crank-arm e is returned to its normal position positively by the smooth edge of the plate f striking and depressing the crank-arm e.

The blocks or disks f, being arranged eccentrically upon the rod 6 and attached by set-screws, provide for adjustment of the curved plate f. The rod 6 is oscillated so that the curved plate f may depress the crankarm 6' by the finger-piece g, secured to one end of the said rod.

The printing-rod or impressing device consists of a strip of spring metal 2', (see Fig. 5,) fastened at each end 2' 2', respectively, to the arms a a of the index-plate, (see Figs. 1 and 5,) said strip 71 having a tooth or projection 2" at or near the center, which bears upon the flexible edge of the type-plate. The parts a d form feet for said strips, it being bent downward and then outward at the ends to form the same.

A yoke '6 (see Figs. 1 and 6) forms a part of or is attached to the plate 2' ,bent or curved to receive a tube '5, mounted upon the rod 6 between the arms a a the said plate '5 being extended upwardly to project beneath the smooth edge of the curved plate f, while the yoke 2' projects beneath the toothed edge of the said plate f. The plate 2' carrying the yoke,is thereby moved up and down like unto and in substantially the same manner as the double crank arm. The yoke 2' has two downwardly-extended ends or projections i (see Fig. 1,) which, when the said yoke is depressed,bear upon and press the spring-strip t down upon either side of the projection '6', so that the tooth or projection t" bears upon the type beneath it and presses it in contact with the paper. The yoke and spring-strip constitute the printing device. The tooth 7, before referred to, which engages the circumferential teeth of the type-plate, is secured to the yoke i When it is desired to move the index-plate toward the left, to commence a new line, for instance, the rear crank-arm e is grasped by the fingers, and while held tightly against the smooth edge of the curved plate fis employed as the handle for this purpose.

To space and not print, as between words, for instance, it is required that the index and type plate shall advance one step; but the movement of the printing-lever shall be insufficient to press the type in contact with the paper, and to effect this result a-second fingerpiece it is loosely mounted upon the rod 6, it having an overhanging hook which engages the shank g of the finger-piece g, so that when the said finger-piece his depressed the rod 6 will be oscillated. A disk is is placed eccentrically upon the rod 5, and as the spacing-finger his depressed it strikes the periphery of the said disk In, and hence its movement is limited, so that the rod 6 will be but partially oscillated. The disk 7.; may be adjusted by rotating it. The rod 5 has a fiat upper surface over which the paper is fed and upon which the type is depressed to print. The paper is fed forward beneath the guard-plate n, bearing upon a feed-roll it, said feed-roll having a rubber or other feeding surface. The feedroll n has its bearings in the side plates 2 3, and has at one end a series of ratchet-teeth,

(see Fig. 2,) which are engaged by a dog 0, made as a part of a plate 0, pivoted at 0 said plate 0' having a slot or enlarged opening 0 (see dotted lines,) permitting it to slide upon the pivot as the pawl or tooth 0 engages the feed-roll and the roller rotates.

The feed-roll n and line-space lever are not herein specifically claimed, as they form the subject-matter of another application, Serial No. 269,705. The pivoted plate 0' is depressed by a finger-piece o and is normally held in elevated position by a spring 0 The plate 0' has at its end adjoining the feed-roll a second projecting tooth or arm 0, which normally rests upon the feed-roll n, limiting the upward movement of the fingerpiece 0 and a projection 0 extends from the under side of the plate 0', which, striking upon the table or base, limits the descent of the finger-piece 0 Upon the right-hand end of the rook-shaft 6 is secured, by a set-screw t, a disk t, (see Figs. 1 and 4,) said disk having a peripheral groove which receives a spiral spring 25 one end of which spring is fastened to the said screw 13' and the other end fastened to the rod to which the guard-platen is attached. This spring serves to return the rock-shaft 6 into normal position, lifting the printing lever or device, and the said screw t permits adj ustment of the spring.

v To expose the paper being printed upon, the index-plate A is lifted upon the shaft'6 as a pivot, as before stated.

We claim 1. In a type-writing machine, theindexplate and concentrically-pivoted type-plate thereon, combined with the oscillating feedplate, and the printing device carried by said index-plate and actuated by said feed-plate, substantially as described.

IIO

2. In a typewriting machine, the indexplate movable horizontally and so constructed as to be lifted upon the rod 6, combined with the feed-plate having the toothed and smooth edges, and the double crank c e, substantially as described.

3. In a type-writing machine, the indexplate movable horizontally and so constructed as to be lifted upon the rod 6, combined with the toothed edge feed-plate attached to and oscillating with said rod, and the crank-arm e, co-operating therewith and carried by the index-plate, substantially as described.

4. In a type-writing machine, the indexplate and spring-controlled toothed edge feedplate and supporting-rod 6, combined wit-h the printing-yoke, the yoke projecting beneath the toothed edge, and the extended plate i beneath the smooth edge of and to be moved upon the rod 6, operated by the said feedplate, substantially as described.

5. In a type-Writing machine, the indexplate and the oscillating feed-plate having the toothed and smooth edges, combined with the crank-arms e e in engagement with the smooth and toothed edges, respectively, the fingerpiece g, and the spring t substantially as described.

6. In a type-writing machine, the indexplate having the index-portion a and arms a a substantially as described, one of the said arms having an upwardly-extending lip and the other arm supporting a block a*.

7. In a type-writing machine, the indexplate having the arms a a the spring-strip 6, connecting the arms and having the central tooth or projection,combined with the printing-yoke, having the end projections adapted to bear upon the spring-strip, substantially as described.

8. In a type-writing machine, the indexplate, the rod 6, and the disks f placed eccentrically upon the rod 6, combined with the curved plate f, having the toothed edge, and the crank-arm e, substantially as described.

9. In a type-writing machine, the indexplate and the oscillating feed-plate, rod 6, and finger-piece g, rigidly attached thereto for moving it, combined with the spacing-finger h, loosely mounted upon said rod and provided with a hook to engage the shank of the finger-piece g, substantially as described.

10. In a type-writing machine, the indexplate and the oscillating feed-plate, and fingerpiece for moving it, the loosely-connected spacing-finger h, and the rotatable eccentricdisk 75, substantially as described.

11. In a type-writing machine, the indexplate and the oscillatingfeed-plate, combined with the disk I, adjustably connected with the feed-plate, and the spring 5, substantially as described.

12. In a type-writing machine, the indexplate and the pivoted type-plate thereon having several type-sections, and theloosely-connected hand-lever,con1bined with the recessed plate 0, attached to the type-plate, and the spring-controlled disk 0, connected with the 

